Find out which trade fairs and conferences we attend, how we work and which technologies we develop.

MMPS – Automatic feeding of SLS machines

In the context of Industrial Additive Manufacturing, the requirements for SLS machines have become more and more stringent, which also means that the plants are becoming larger and larger. Among other things, this poses a major challenge: the efficient and mainly automated feeding of SLS systems becomes necessary. LSS GmbH has developed the Modular Material Processing Solution (MMPS) as a solution for this.

The MMPS is a powder management system for laser-sintering systems. It automates the feeding process of your SLS machine. As soon as the Material Module has been manually filled with powder, the automatic weighing, mixing and feeding of the system takes place in the other modules. This allows for time savings for the machine operator of up to 90% and for the entire filling process of up to 25%.

Thanks to its modular design, the MMPS can be individually adapted to the customers’ requirements. With a complete MMPS system a maximum of four material types (e.g. used, virgin, overflow, recycled) can be processed and several machines can be fed. The software developed by LSS enables intuitive control of the entire system. The MMPS is material-open and can be used with almost all current SLS machines on the market.

At the moment, Material, Mixing, Buffer and Filling modules are available. Together with the Top- and Bottom-Feed Adapters, this enables individual adaptation to the existing printing process. Furthermore, the MMPS offers a feed length of up to 20m. This allows for efficient feeding even if there is no more space available in the direct vicinity of your SLS machine.

Due to the integrated filter system a low-dust operation is realized. Furthermore, the direct contact of the powder with employees and the environment is minimized, which reduces the risk of contamination of the powder. The material batches and relevant environmental influences are measured and logged by the MMPS, which allows a good history and traceability of the mixing and conveying process.

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Conferences: Meet us in March

Christian Held is giving a presentation on the MMPS in Stuttgart, Ralph Rissé is meeting with you at the APS Meeting in Lyon and we are exhibiting at the Additive Manufacturing Forum in Berlin.

23. Anwenderforum – Additive Produktionstechnologie // March 03, 2020 // Stuttgart

At the Anwenderforum in Stuttgart, Christian Held is giving his presentation "Efficient and innovative material management in the laser sintering process". He will take a deep dive into the MMPS technology and answers your burning questions. Get more information here:

APS Meeting Lyon // March 10-11, 2020 // Lyon

Just like last year, we will be present at the APS Meeting in Lyon. One-on-one expert meetings that allow for an in-depth discussion of our portfolio characterize this conference. You can schedule your meeting with Ralph Rissé, our Marketing & Business Development Director, now:

4. Additive Manufacturing Forum Berlin 2020 // March 11-12, 2020 // Berlin

It is time for this year's Additive Manufacturing Forum! You get to meet experts from across the industry and can discuss trends, innovations and the future of AM. LSS is one of the exhibitors. Check out the program and get your tickets!


LSS and Formnext

Formnext is approaching quickly. As a long-term exhibitor at this fair, you probably expect LSS to be in Frankfurt presenting the new solutions developed by our expert team. We are writing to you today to inform you that LSS will not have a booth at Formnext 2019.

This year, our full focus is on further building and improving our new platform – the RAPTOR. It is the first laser sintering system that is developed entirely by us and entails all of our expertise from years of maintaining other machines. We are very proud of our system and are happy to put all of our attention into this machine.

Some of you were able to get a first look at the RAPTOR series at Formnext 2018. Since then, we kept on working on the machine and made great progress. At this time though, it is a question of priority management. This is why we decided not to participate in Formnext this year.

Instead, we are happy to invite you to visit us in Holzwickede to get a detailed view into the RAPTOR as well as the MMPS (Modular Material Processing solution) system – our very own material management system. This gives you the chance to see the whole solution in a real-life, fully functioning environment.

We are happy to give you an exclusive tour and a thorough explanation of the system. You can contact us any time to schedule a meeting with us.

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Post-Processing of additively manufactured polymer parts

Laser sintering technology is a manufacturing process that enables the layer-by-layer production of components from powdered plastics directly from 3D CAD data. Highly complex plastic components with a high degree of functional integration are possible without shaping tools or support structures. Depending on the customer's requirements regarding the component surface, the mechanical properties or the color of the component, it may be necessary to rework the additively produced components. These steps are called post-processing and directly follow the successfully completed construction process.

First, the components are separated from the non-sintered residual powder (cake). In order to remove strongly adhering residual particles from the surface, each component is blasted with glass beads in a blasting system and cleaned of any blasting material residues using compressed air. After the complete cleaning of the components, an initial visual evaluation of the component quality (including surface roughness, wall thicknesses and possible component defects) is carried out.

The painting of the component surface is suitable for improving the surface quality. For this process, the component must first be primed or filled. This is followed by intensive sanding of the filling layer produced in this way with subsequent cleaning of any dust and sanding residues. Last but not least, the coating is carried out with 1K or 2K lacquers. It is also possible to use special varnishes which, for example, have conductive properties. Depending on the geometry of the component, possible internal surfaces during component design, which can only be treated to a limited extent in the subsequent process, must be considered.

If the customer requires improved chemical resistance, air-, gas- or liquid-sealed components, an infiltration process follows the component cleaning. Infiltration closes the pores of the material by dipping, spraying or brushing with an epoxy. The infiltration process does not significantly alter the final dimensions of the additive component, so that the narrow tolerances achieved in the additive process are not affected negatively.

Other post-processing steps include component coloring, vibratory finishing to optimize surface roughness, and component coating with metallic coatings to improve mechanical component properties.


Save the Date: Presentation about MMPS

Each year, the Fraunhofer IPA institute organizes this User Forum focused on Additive Manufacturing. This forum is all about practical applications for additive technologies. The presentations focus on both theoretical approaches by universities and practical implications by industrial companies. Therefore, the forum portrays a wide range of information and viewpoints.

The location of the forum is special, too. It takes place at the Messe Stuttgart while the Moulding Expo 2019, the International Trade Fair for Tool, Pattern and Mold Making, is happening as well. This gives the attendees the chance to see some of the technologies presented in action at the trade fair.

In the afternoon, Klaus Laubinger, Sales Director at LSS, will present our MMPS system. The topic of his talk is “Efficient and innovative powder management in the laser sintering process”. He will focus on the daily struggles in the laser sintering process and how the MMPS can solve them.

Find out more about the forum and get your tickets here:

Fraunhofer is the largest research organization for applied research in Europe focusing on health, safety, communication, mobility, energy and the environment. Fraunhofer IPA, the organizer of the Anwenderforum, was founded in 1959 and is one of the largest institutes within Fraunhofer. They focus on production technology and automation.

Code and face

Challenge of change

In a small development company, be it software or hardware, there is a lot of ad hoc solutions, and in many cases sub systems that are not connected. Perhaps one engineer is working on a heater upgrade and another on a piece of code for a PLC. Each person has the responsibility of their part of the development. If questions arise, people just talk to each other. This is a fast and really enjoyable way to work - in small enough teams and simple enough projects. That was what I saw at LSS the first time I was here.

Now we are a much bigger company and what we do is vastly more complex. The knowledge at LSS, if I may brag a little, is unique. In order to put the growing team’s growing knowledge to good use we needed to change the way we work. We did - and we do so continuously.

Changes are happening on several levels. The most obvious one for me is in tools and methods to improve software quality. We no longer keep track of versions manually. We don’t have to remember backups and we don’t have to wonder what software is in what machine. We have systems and methods for that.

So what used to be manually managed bits and pieces of code for different parts of the machines we develop, is now a slick and modern code repository, with automatic, encrypted backups, and standardized methods to use it. The goal of this is easy to grasp, and to justify the burden of getting used to it. Making sure we have the right information in the right place.

That goal is equally important on other levels. Perhaps the hardest one is how people in the company share information. Going from the small, fast, with no overhead development team to the larger, more complex, geographically spread team takes some determination. But it’s as necessary as proper backups. This is also done with tools and agreed upon methods, and a willingness to change as we go.

One level that’s of special interest to me is the treasure of information that we have in the machines. Both hard data and meta data. What used to be dull log files used to troubleshoot a build and then forgotten about, is now a part of valuable data that we can draw more in-depth conclusions from. Both from a single machine but more importantly from many. We are building systems to harvest insights and knowledge. Now manually – soon using machine learning.

The changes we are going through to meet the demands of our growth are what makes me truly believe in LSS. Being on board and being a part of this growth, these changes are a challenge. But it’s also really fun and rewarding. I have to stay sharp, and that keeps LSS sharp.

It’s is what makes the impossible possible.


Exclusive offer: Used HTS252P SLS machine at discounted price

This FARSOON HTS252P is a leasing return and barely two years old. This is a cost efficient alternative to buying a new machine. Of course, you can use our usual financing options.

The HTS252P is perfectly suited for printing smaller parts or in Research & Development since it is a compact and high-temperature SLS system. The machine reaches a build room temperature of up to 220°C and allows for the use of many typical materials like PA11 and PA12. This machine is parameter and material open – just like all of our machines.

This used HTS252P is a leasing return and was built in June 2017. The system has been maintenanced on a yearly basis by LSS and, therefore, is in very good condition. The delivery includes the generator and the chiller – so that you have everything necessary to start building. We are also happy to offer you the corresponding maintenance contract.

Machine data at a glance:

FARSOON HTS252P – Powered by LSS

  • Year of construction: 06/2017 (Leasing return, regular maintenance)
  • Build room: 250x250x320 mm (effective build room: 235x235x305 mm)
  • Laser: 70W with corresponding cooling unit
  • Layer Thickness (typical): 0,06-0,3 mm (0,1 mm)
  • Scanning speed: up to 12,700mm/s
  • Powder Feed Mode: Bi-directional powder feed system with single feed cylinder
  • Powder application: counter-rotating precision roller
  • Thermal Field Control: Eight-zone heater & intelligent temperature control systems
  • Max. Chamber Temperature: 220 °C
  • External dimensions: 1750x1150x1915mm
  • Weight: 1800 kg
  • Power requirements: 30 kW (12 kW Max) 32A
  • Manual and automatic control modes, real-time build parameter modification, three-dimensional visualization, and diagnostic functions
  • Operating System: Windows 7
  • System Control Software Farsoon AllStar open platform control interface or LSS MCS
  • Data File Format: STL
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Forum dedicated to Advanced Prototyping Solutions

LSS GmbH has been an exhibitors the Advanced Prototyping Solutions Meeting in Lyon, France. Surrounded by Additive Manufacturing experts from industrial companies, APS meetings is an efficient format to interact with the end user. This forum was a great opportunity to interact with international players from various industries, like automotive, aerospace, medical, consumer goods, transportation and electric & electronics.

This intimate format allows tackling concrete problematics received from the end user, concerning additive manufacturing. As a 3DP machine supplier, LSS held a conference introducing the RAPTOR Series and its unique ThermoMelt™ technology, which allows for the cost efficient production of 3D parts made of the high-performance polymer PEKK. It has been a great opportunity to present various cases studies and to show how ThermoMeltTM is the next step to closing the gap between Industrial Additive Manufacturing and conventional manufacturing technologies.

Minutes of the APS Meeting

  • Cost optimization and post treatment of AM parts
  • Solutions for mass customizations
  • Higher and higher integration of user in AM technology
  • B2C AM solutions through demanding solutions and spare parts, not goodies
  • AM Simulation and prediction of final performances of 3D parts , indeed talking about industrialization it is a critical step to predict the final mechanical behavior of the 3D part
  • Growing demands to combine AM solutions with conventional fabrication methods.

AM-Forum: About cyborgs and design automation

There are not many places where you can listen to talks about cyborgs, design automation, heart valves and the energy chain – all within one conference. The AM-Forum Berlin quickly established itself as one of the major conferences for decision makers interested in AM technology in Germany. Within just three years, this conference became an important meeting point for interested parties across all industries.

In his presentation, Dipl.-Ing. Volker Seibicke answered the question where norms and standards for the AM field are coming from. This is especially interesting for internationally operating companies. In the past, there have not been many regulations for this rather new industry. This will change in the future and it is important to keep up with them.

Other presentations talked about medical applications for the AM technology and showed that the high flexibility and speed of this production process can help improve the life of people in need of prosthetics. Companies from a wide variety of industries presented their use of 3D-printed parts. This shows that AM is not limited to a specific application or industry. It can create value throughout the whole development and production process.

The AM-Forum is not just a place to meet potential clients but to also to catch-up with current clients and our supplier network. The presentation by BASF about “Innovative materials for today, tomorrow and the digital future” was especially interesting for us since we always stay up to date when it comes to new materials entering the market thanks to partners like BASF. In addition, it is always great to talk to our material supplier Lehmann & Voss. Our client Kegelmann exhibited their current innovations just across the hallway form us.

Overall, these two days set the tone for the rest of the year. They show the importance of Germany as a high-tech country.

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Join us at APS Meeting Lyon

On March 19 and 20, 2019, the seventh APS Meeting in Lyon takes place. The 2-day congress is dedicated to additive manufacturing, rapid prototyping and product development. Book a meeting with us now or listen to our presentation about the ThermoMeltTM technology.

APS (Advanced Prototyping Solutions) Meetings take place all over France. This series of business conventions focuses on Additive Manufacturing, 3D Printing, Rapid Prototyping and Product Development. Experts from a variety of industries discuss these topics in One-to-One meetings and workshops. The goal is to connect buyers and suppliers in a unique way via a special online platform. In 2018, APS organized more than 2.500 meetings for 345 international participants and 247 companies.

"The APS meeting is a unique B2B concept, that could be summarized like Agility, Professional, Straight to the point.", Ralph Rissé points out. "As a 3DP Machine producer this efficient format of 30 minutes meeting time with prebooked visitors drive us to qualitative interactions focusing on concrete problems to be solved. Also nice event in a great city Lyon , to be updated on the latest innovations and developments in this small 3D printing world."

We are especially excited for the presentation held by Ralph Rissé, Marketing & Business Development Director at LSS. The title of his talk is “ThermoMeltTM – The new 3D printing process for a greater industrial perspective of high-performance polymers” and it covers all there is to know about this innovative technology. You can listen to Ralph Rissé at 3pm on March 20, 2019.

Ralph Rissé summarizes the presentation: "Today, Polymer use in additive manufacturing is a dynamic field, driven by the need for high performance polymers to meet demanding technical requirements. ThermoMeltTM technology is the next step in AM , closing the gap with conventional Manufacturing technology, providing unreached isotropy, and Z direction performances to the 3D printed parts."

Book your One-to-One meeting now here:

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Visit us at the AM Forum 2019

For two days, on March 14 and 15, 2019, networking events, master classes, lectures and panel discussions as well as workshops about AM will take place. This year the program for over 700 conference attendees consists of more than 90 exhibitors and 40 sessions. Main topics are New Materials, Development & Design, Series Production & Additive Factory and Business Models.

"The AM Forum is very practice-oriented," explains Klaus Laubinger, Sales Director LSS. "The lectures show directly how new technologies and innovations are used in everyday business.” The combination of lectures, networking, workshops and exhibitions is also very popular and has led, among other things, to the Forum's great growth in such a short time.

Just like last year, LSS will be present with a booth. At Booth 49 we will be happy to answer your questions and explain how you can directly integrate our technologies in your company. Have a look!

Book your ticket here:


Press release: RAPTOR launch

LSS Laser-Sinter-Service GmbH introduces its RAPTOR series at Formnext (Hall 3.1 Booth E31) and further establishes itself as an emerging leader in the field of laser based powder bed fusion of polymers by taking Additive Manufacturing (AM) to the next industrial level.

The new RAPTOR 84X-Q, designed in an unmatched modularity, provides game-changing performance and significant reduction of costs per part, especially for high performance polymers. Featuring a build envelope of 800x400x480mm³, the RAPTOR 84X-Q is the world’s first polymer laser sintering platform equipped with a quad laser/scanner system, which allows production rates never been seen before. A dual laser/scanner model will be available as RAPTOR 84X-D model.

The RAPTOR 22X-S is the high temperature entry-level alternative with its build envelope of 250x250x300mm3.

Both RAPTOR models, the 22X-S and the 84X, are designed for the future of AM and will be available in a “TM” version, featuring the Airbus patented ThermoMelt™ process for high-performance industrial parts, and seem likely to become the market reference.

The combination of modularity, highest productivity and the new ThermoMeltTM process enables LSS to take the next big step in becoming a leading solution provider for Industrial Additive Manufacturing and highly demanding applications. The intrinsic features of our machines make high-performing, serial, and durable 3D printing a reality for our customers,” states Guido Elbrecht, CEO of LSS.

With an exceptional strength in Z direction, the RAPTOR TM-series delivers high-density parts at a cost structure unreached before. In the past, the use of high performance polymers required high process temperatures, which generated significant thermal aging of the polymer and made it almost impossible to re-use high-cost materials like polyetherketoneketone (PEKK), polyphthalamide (PPA) and polyphenylene sulfide (PPS). Operating at lower temperatures, ThermoMelt™ on the RAPTOR TM-series avoids the thermal aging and makes the recyclability of these polymers of up to 95% possible.

Hermann Hanning, CTO at LSS, added: “While designing the RAPTOR 84X-Q, we had typical LSS values in mind – be open, flexible, innovative and reliable. Thanks to its strict modular design, we can upgrade or modify the machine to match all process or application relevant requirements. This makes the RAPTOR series fit for the future and allows optimal integration and adaption according to the individual needs of each and every customer.”

As a laser sintering machine designer and producer, LSS targets added-value solutions for end-users. Open innovation is not an option anymore but a requirement. We collaborate with key industry leaders to seek new performing materials fitting our open systems to better serve un-matched demands in industries such as Automotive & Automation, Aerospace, Oil & Gas, Healthcare, Consumer Goods and Electronics.

™ ThermoMelt is a trademark of Airbus S.A.S.